Items included in the purchase list of fuel injection air compressor

Selection and configuration of air compressor

the "water-lubricated air compressor" of Shanghai Granklin Group can be selected without using oil-water separation filters and oil removal filters, because the "oil-free air compressor" produced by Granklin is 100% oil-free.

General 1. configuration and precautions:

configuration 1: air compressor-gas storage tank-oil-water separation filter-dust removal filter-oil removal filter.

Configuration 2: air compressor-gas storage tank-oil-water separation filter-cold dryer-dust removal filter-oil removal filter.

Configuration 3: Air Compressor-Air Storage Tank-Oil-Water Separation Filter-Cold Dryer-Oil Removal Filter-Adsorption Dryer-Dust Removal Filter.

Each filter has a different role in the system, and generally plays a better role in protecting the rear equipment.

Selection and Configuration of Air Compressor-Picture 1

in the current market, there are also many configurations that are simplified on the basis, but generally speaking, there are some hidden problems in simplifying the configuration. Combined with several cases to illustrate:

1, such as not equipped with oil-water separator; It will cause excessive water content in the air entering the cold dryer, increase the load of the cold dryer, and affect the air quality. A large amount of oil and dust particles entering the cold dryer will cause the drain of the cold dryer to be easily blocked, and the accumulation of oil and impurities on the copper pipe wall of the cold dryer will cause the heat dissipation effect to deteriorate.

2, such as not equipped with gas storage tank; Because the gas storage tank has a buffer flow and cooling effect, and can remove part of the liquid water, in the pressure instability of the pulse flow on the cold dryer impact.

3. If there is no pretreatment, the adsorption dryer is directly connected, such as: air compressor-oil removal filter-adsorption dryer-dust removal filter. This configuration has a very large load on the suction dryer, especially when the intake air temperature is high, the treatment effect will be poor, and it is easy to cause a large amount of water spray from the muffler, which has a great impact on the valve life of the suction dryer.

4. If the temperature of the compressed air entering the cold dryer is too high or the environmental heat dissipation is not good, it is easy to cause the cold dryer to jump or the effect is not good, and the whole machine is unstable.

2. selection of cold and dry machine, should pay attention to the following points:

1. The flow rate, pressure and ambient temperature of the air compressor must be considered in the selection. In general, the flow rate of the air compressor should be consistent or appropriately enlarged compared with that of the dryer, but it should be avoided as small as possible.

2, the exhaust temperature is higher, the need to add a rear cooler, if the user environment temperature is relatively poor, the large unit is preferred to choose a water-cooled dryer. In order to ensure that the intake air temperature is below 45 ℃ and the summer environment is kept below 38 ℃, normal temperature type cold dryer can be selected.

In the configuration of the whole system, generally each cold dryer or each filter should consider the pressure drop of 0.02Mpa. A bypass valve shall be installed at the inlet and outlet of the dryer to facilitate equipment maintenance and overhaul.